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0454004.MR Littelfuse 0454004.MR NANO2 Slo-Blo surface mount fuse rated 4A at 125VAC/VDC with 50A breaking capacity.
Mfr Part #:

0454004.MR

Available from 3 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse 0454004.MR NANO2 Slo-Blo surface mount fuse rated 4A at 125VAC/VDC with 50A breaking capacity.
Total Stock: 10,114 pcs

0454004.MR Available from 3 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
4,464 pcs
4464 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
4,450 pcs
4450 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,200 pcs
1200 pcs On Request 1 On Request On Request On Request On Request On Request

0454004.MR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Breaking Capacity
Breaking Capacity @ Rated Voltage
Current Rating
Current Rating (Amps)
Fuse Type
Halogen Free
Height
Length
Medical Grade
Melting I²t
Military Grade
Mounting Type
Nominal Cold Resistance
Operating Temperature
Package / Case
Response Time
Voltage Rating
Width

0454004.MR Description

Short technical summary and product information.

The Littelfuse 0454004.MR is a NANO2 Slo-Blo surface mount fuse from the 452/454 Series. It is rated for 4A continuous current at 125VAC/VDC and offers a breaking capacity of 50A at 125VAC/VDC and 300A at 32VDC. The time-delay (slow-blow) characteristic helps prevent nuisance openings by accommodating inrush currents that would cause fast-acting fuses to open.

 

This fuse is housed in a 2-SMD square end block package (NANO2) measuring 6.10mm x 2.69mm x 2.69mm, suitable for automated surface mount assembly. It operates over a temperature range of -55°C to 125°C and has a nominal cold resistance of 0.0186 ohms. The melting I²t is 34.4 A²s at 8ms.

 

The 0454004.MR is RoHS compliant and halogen free. It carries agency approvals from CSA, PSE, and UL (UL file E10480). Typical applications include notebook PCs, LCD displays, power supplies, networking equipment, and battery charging circuits.

0454004.MR Quick Information

Product Type: Surface Mount Fuse
Series: 452/454 Series
Canonical Name: Littelfuse 0454004.MR NANO2 Slo-Blo Surface Mount Fuse, 4A, 125VAC/VDC
Subcategory: Board Mount Fuse

0454004.MR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

0454004.MR Features

  • 4A rated current at 125VAC/VDC.
  • 50A breaking capacity at 125VAC/VDC.
  • Slo-Blo time-delay characteristic.
  • Surface mount NANO2 package.
  • RoHS compliant and halogen free.

0454004.MR Applications

  • Used in notebook PC power circuits.
  • Suitable for LCD backlight inverters.
  • Protects power supply input stages.
  • Ideal for battery charging circuits.
  • Applied in networking and telecom equipment.

0454004.MR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 0454004.MR fuse?

The fuse is rated for 4 A continuous current.

What voltage rating does this fuse have?

It is rated for 125 V AC/DC.

What is the breaking capacity of the 0454004.MR?

Breaking capacity is 50 A at 125 VAC/VDC and 300 A at 32 VDC.

Is this a fast-acting or slow-blow fuse?

It is a slow-blow (Slo-Blo) time-delay fuse.

What package type is the 0454004.MR?

It comes in a 2-SMD square end block package (NANO2).

What is the operating temperature range?

The fuse operates from -55°C to 125°C.

Is the 0454004.MR RoHS compliant?

Yes, it is RoHS3 compliant and halogen free.

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